Effect of Compatibilizer Type on Properties of 70:30 Polyamide 6/Polypropylene/MMT Nanocomposites

Abstract

PA6=PP nanocomposites with either polyethylene octene elastomer grafted maleic anhydride (POEgMAH) or PP grafted maleic anhydride (PPgMAH) as compatibilizer were prepared using co-rotating twin-screw extruder followed by injection molding. The mechanical and microstructural properties of the composites were investigated by means of tensile, flexural, and impact testing and by scanning electron microscopy (SEM). X-ray diffraction (XRD) was used to characterize the formation of nanocomposites. The result indicated that the miscibility of PA6=PP nanocomposites was improved with the addition of POEgMAH and PPgMAH. The impact strength of PA6=PP nanocomposite with POEgMAH increased about 5 times higher than uncompatibilized composite. Increment in tensile properties was observed when PPgMAH was used as compatibilizer. XRD results revealed that PA6=PP nanocomposites were successfully formed. Uniform dispersion of PP in matrix were observed through SEM, which showed the improvement of the compatibility between polymers.

Review on nano‐and microfiller‐based polyamide 6 hybrid composite: Effect on mechanical properties and morphology

“…Addition of 4 wt% organoclay gave the highest tensile strength as well as flexural strength for the composites. Othman et al [42] continued their study to investigate the effect of compatibilizer types polypropylene-g-MA (PP-g-MA) and POE-g-MA on 70/30 PA6/PP hybrid nanocomposites. The tensile strength, Young's modulus, flexural strength, and flexural modulus increased with incorporation of PPg-MA into the PA6/PP hybrid nanocomposites due to the improved interfacial adhesion between PA6 and PP.…”

Characterization of PHB/Clay Biocomposites Exposed to Degradation in an Aquatic Environment

“…Thus, the change of d001 could be used to indirectly compare the surface compatibility of the silicate/polymer chains in the nanocomposite [43][44][45] . Therefore, due to a better polymer/clay compatibility in the system, more polymer chains are intercalated between the silicate layers, and consequently better results will be reflected in the composite properties 45,46 .…”

“…This result can also be attributed to the effect of the formation of nanoagglomerates and the type of equipment used, a single screw extruder, not favoring an optimized dispersion of the filler. According to Othman et al 46 , who analyzed nanocomposites based on a blend of polyamide 6 (PA6) and polypropylene (PP) loaded with organophilic clay (Nanomer 1.30 TC) and PP-g-MA and random polyethylene octene copolymer grafted with maleic anhydride (POE-g-MAH) as compatibilizing agent, the absence of the characteristic clay peak corresponding to d 001 may indicate that the clay structure was exfoliated and randomly dispersed. Furthermore, the presence of the compatibilizer did not change the dispersion of the organic clay.…”

Recent Developments in PA6/PP Nanocomposites

“…Effect of the type of elastomer. The effect of the type of elastomer on the PA6/PP/organoclay nanocomposites was studied in our group [28][29][30][31]. Four different types of elastomers were incorporated into the PA6/PP/organoclay blends as toughening agents; ethylene-octene elastomer (POE), ethylene-propylene rubber (EPR), maleated POE (POEgMA) and melated EPR (EPRgMA).…”